解释:屋顶是否有漏洞,下面的人才知道。
Psychology should focus on how the mind functions to solve practical problems, not just its abstract structure.
The people who get on in this world are the people who get up and look for circumstances they want, and if they cannot find them, make them.
哭着送去,哭着回来,回来后要努力于衣食之物的生产,资助祭祀,并用来孝顺双亲。 
Quality should never be compromised for the sake of short-term profits.